Typewriting machine



Juy 3, i934. L. c. MYERS TYPEWRITING MACHINE -Filed Aug. 16, 1952 .mul

mw www Ill INVENTOR/ Tjigerf' ATTORNEYS Patented July 3, 1934 TYPEWRITING MACHINE Lewis C. Myers, Freepor Typewriter Company,

t, N. Y., assignor to Royal Inc., New York, N. Y., a

corporation of New York Application August 16,

1S Claims.

This invention relates to new and useful improvements in typewriting machines generally, although more particularly to a label or card holder which is attached to the platen of the carriage.

Among the several objects of my invention are to provide a card holder which is composed of comparatively few parts and is therefore simple in construction, is capable of being easily assem- 10 bled in the platen, and is durable and positive in operation.

With these and other objects in view which will more fully appear, the nature of the invention will be more clearly understood by following the description, the appended claims, and the several Views illustrated in the accompanying drawing.

In the accompanying drawing:

Figure 1 is a view partially in elevation and 2O partially in section showing a typewriter carriage and a platen, the latter embodying the subject matter of my invention,

Figure 2 is a partial top plan view of one end of the platen, parts being shown in section,

Figure 3 is a longitudinal sectional View therethrough,

Figure 4 is an enlarged cross sectional View taken on the line 4--4 of Figure 2,

Figure 5 is a perspective View showing the pinion 3U shaft frame and one of the card gripping fingers in separated relation,

Figure 6 is a perspective view of the pinion shaft,

Figure 7 is a perspective View of a modiiied form of of card gripping nger, and

Figure 8 is a detail sectional View showing the modified form of finger in operative position within the cylinder.

Referring to the accompanying drawing, and particularly to Figure l thereof, I have illustrated a portion of a typewriting machine which includes a carriage A, a cylindrical platen B mounted on the carriage and to which my invention is shown applied, and a type bar C.

The platen B comprises a wooden core 5 and a rubber cover or sleeve 6, the core being formed with the usual axial bore 7 and provided at one end with the usual stub axle 8 to which the usual hand knob 9 is xedly secured through the platen shaft D, the platen shaft being journaled in the carriage end plates :c in the usual manner.

Formed in the cover 6 of the platen is a plurality of spaced rectangular openings l0, 10 and formed in the core 5 is a plurality of radially disposed clearance openingsll, 11 which respec- 1932, Serial N0. 629,056

tively register with the openings 10, 10. Formed in the core 5 and extending longitudinally thereof between the openings 10 and 11 is a seat 12 which is rectangular in cross section and includes a bottom 13 and side walls 14, 15. It will thus be apparent that the openings 10, 10 communicate With the seat l2 and with the periphery of the platen, and that the openings 11, 11 communicate with the seat 12 and with the bore 7,.

Mounted in each pair of openings 10 and 11 is a sheet metal card gripping linger 16 having a transverse slot 17 adjacent its upper end and forming a resultant overhanging card engaging clamp 18. Each linger 16 is provided with a plurality of rack teeth 19 extending along one of its longitudinal edges. The openings 10, 10 are rec tangular and are each of an area to freely receive and guide the associated card gripping iingers 16, whereas the openings 11, 11 are circular in cross section and each is of a diameter greater than the width of the associated finger.

In order to move both card gripping lingers 16, 16 simultaneously, I have provided an actuating pinion shaft 20 which is journaled in the seat 12 and the teeth 2l thereof are directly engaged with the rack teeth 19 of the card gripping fingers 16. In order to properly mount the shaft 20 in the seat 12 and also to provide additional means for guiding the card gripping iingers 16, I have provided a sheet metal frame 22 which includes a bottom plate 23, a side plate 24, and inner and outer end plates 25 and 26 respectively. The bottom plate 23 rests against the bottom 13 of the seat 12 and is provided with spaced and transversely extending rectangular guide openings 27, 27 for receiving and guiding the inner end portions of the card gripping fingers 16. Theseopenings 27 lie directly adjacent the side plate 24 and the length of each opening is substantially equal to the width of the associated finger 16. Consequently the openings 27, 27 and the walll 24 cooperate to guide the fingers 16, 16 in their radial movements relative to the platen. The pinion shaft 20 extends directly over the bottoni plate 23 on the side of the slots 27 opposite the wall 24, and the inner end of said shaft is provided with a reduced extension 28 which is journaled in a bearing opening 29 formed in the inner end plate 25 of said frame. The wall 24 of the frame rests against the wall 14 of the seat 12 and the pinion shaft 20 rests against the opposite wall 15 of said seat 12. The outer end plate 26 of the frame is cut away as at 30 to permit the outer end of the shaft extending outwardly beyond the adjacent end of the platen.

lil

- ments relative thereto and provided with rack In order to oscillate the pinion shaft 20 and thereby simultaneously project the card gripping fingers 16 outwardly, I have secured a finger lever 3l rigidly to the projecting end of said shaft and the lever is provided with a stop 32 which is adapted to engage the stub axle 8 and thereby limit the inward movements of the card gripping fingers 16. v Y

In order to retain the frame 22 against inward longitudinal movements relative to the platen, I have provided a stop pin 33 in the inner end of the seat l2 for cooperation with the inner end of the frame 22. In order to prevent outward longitudinal movement of the pinion shaft 20, I have provided a stop screw 34 which I have secured to the hub of the stub axle 8, the head of this screw being disposed beyond the finger lever 3l and having constant engagement with a concentric portion 35 on said lever, the shoulder of the reduced extension 28 preventing inward movement of the shaft.

In order to normally and yieldably retain the card gripping fingers within the platen, I have provided a coiled spring 36 around the projecting end of the pinion shaft 20. One end 37 of this spring bears against the attaching hub of the stub axle 8 and the other end 38 engages over the finger lever 3l.

In operation, the card gripping fingers 16 are Wholly disposed within the platen as shown in Figures 3 and 4 particularly. and when it is desired to attach a card 39 to the platen, the operator by means of the fingerpiece 31 rocks the pinion shaft 20 against the tension of the spring 36.

'1 This movement of the pinion shaft through its direct engagement with the rack teeth 19 of the fingers 16, causes said fingers to be moved outwardly so as to project the slots 17 beyond the periphery of the platen into a position for permitting said slots to receive the upper edge of the card 39. After the card has been positioned, the operator releases the finger-piece 31, and the spring 36 immediately functions to automatically move the card gripping fingers 16 inwardly, thereby causing the overhanging card clamps 18 to cooperate with the periphery of the platen and thereby retain the card against movement relative to the platen.

In the form illustrated in Figures 7 and 8, I have provided a card gripping finger 40 with rack teeth 4l along one edge thereof, and with a T-shaped upper end 42, the latter being formed by oppositely located transverse slots 43, 43 and the slots forming resultant oppositely extending overhanging card clamping means 44, 44. By means of this form, a card may be clamped either along its upper edge or along its bottom edge as will be readily apparent.

While I have shown two fingers and means for simultaneously operating both of these fingers, it will be apparent that I may employ a single iinger or any desired number of fingers.

I claim:-

1. In atypewriting machine, the combination 2' with a cylindrical platen; of a card gripping fmger mounted in the platen for radial movements relative thereto and provided with rack teeth along one edge; and means for moving the finger including a pinion shaft disposed within the cylinder and having direct engagement with said rack teeth.

2. In a typewriting machine, the combination with a cylindrical platen; of a card gripping finger mounted in the platen for radial moveteeth along one edge; means for moving the finger including a pinion shaft disposed within the cylinder and having direct engagement with said rack teeth; and a spring for yieldably retaining the finger against outward radial movement.

3. In a typewriting machine, the combination with a cylindrical platen; of a card gripping finger mounted in the platen for radial movements relative thereto and provided with rack teeth along one edge; and means for moving the finger including a pinion shaft disposed within the cylinder and having direct engagement with said rack teeth, said pinion shaft projecting beyond one end of the platen, and an operating finger lever fixed to the projecting end of the shaft.

4. In a typewriting machine, the combination with a cylindrical platen; of a card gripping linger mounted in the platen for radial movements relative thereto and provided with rack teeth along one edge; means for moving the finger including a pinion shaft disposed within the cylinder and having direct engagement with said rack teeth, said pinion shaft projecting beyond one end of the platen, and an operating finger lever fixed to the projecting end of the shaft; and a coil spring disposed around said projecting end of the shaft and having its ends respectively connected to the platen and to the shaft for yieldably retaining the finger against outward radial movement.

5. In a typewriting machine, the combination with a cylindrical platen; of a card gripping finger mounted in the platen for radial movements relative thereto and provided with rack teeth along one edge; means for moving the finger including a pinion shaft disposed within the cylinder and having direct engagement with said rack teeth; and-means for retaining said shaft against longitudinal movement relative to the platen.

6. In a typewriting machine, the combination with a cylindrical platen having a longitudinal seat located intermediate the longitudinal axis and the periphery, and having an opening extending radially between said seat and said periphery; of a card gripping finger mounted in the opening for radial movements relative to the platen and provided with rack teeth along one edge; and means for moving the finger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth.

'7. In a typewriting machine, the combination with a cylindrical platen, said platen having an axial bore, a longitudinal seat located intermediate the axial bore and the periphery, a radially extending guide opening communicating with the seat and with the periphery and a radially extending clearance opening communicating with the bore and with the seat and disposed in radial alinement with the guide opening; of a card gripping finger mounted in said openings for radial movements relative to the platen and extending across said seat, said finger being provided with rack teeth located in register with said seat; and means for moving the finger including a pinion shaft journaled in the seat and alinement with the guide opening; of a card gripping finger mounted in said openings for radial movements relative to the platen and extending across said seat, said finger being provided with rack teeth located in register with said seat; means for moving the finger including a pinion shaft'journaled in the seat and having direct engagement with said rack teeth, said pinion shaft projecting beyond one end of the platen, and an operating finger lever fixed to the projecting end of the shaft.

9. In a typewriting machine, the combination with a cylindrical platen, said platen having an axial bore, a longitudinal seat located intermediate the longitudinal bore and the periphery, a radially extending guide opening communicating with the seat and with the periphery and a radially extending clearance opening communieating with the bore and with the seat and disposed in radial alinement with the guide opening; of a card gripping nger mounted in said opening for radial movements relative to the platen and extending across said seat, said nger being provided with rack teeth located in register with said seat; means for moving the finger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth and an operating finger 1ever xed to the projecting end of the shaft, a stub axle fixed to the adjacent end of the platen; and a stop xed to the finger lever and normally engaging the stub axle to limit the inward movement of the nger.

l0. In a typewriting machine, the combination with a cylindrical platen, said platen having an axial bore, a longitudinal seat located intermediate the longitudinal bore and the periphery, a radially extending guide opening communicating with the seat and with the periphery and a radially extending clearance opening communieating with the bore and with the seat and disposed in radial alinement with the guide opening; of a card gripping nger mounted in said opening for radial movements relative to the 'platen and extending across said seat, said finger being provided with rack teeth located in register with said seat; means for moving the nger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth and an operating nger lever fixed to the projecting end of the shaft, a stub axle fixed to the adjacent end of the platen; a stop xed to the finger lever and normally engaging the stub axle to limit the inward movement of the finger; and a coil spring disposed around said projecting end of the shaft and having its ends respectively connected to the platen and to the shaft for yieldably retaining said stop against the stub axle.

11. In a typewriting machine, the combination with a cylindrical platen comprising a Wooden core and a rubber cover therefor, the core being formed with an longitudinally extending peripheral seat, and the cover being formed with a radially extending opening communicating With the seat and with the periphery of the cover; of a card gripping finger mounted in the opening for radial movements relative to the platen and provided With rack teeth along one edge; and means for moving the finger including a pinion shaft Ajournaled in the seat and having direct engagement with said rack teeth.

l2. In a typewriting machine, the combination with a cylindrical platen comprising a wooden core and a rubber cover therefor, the core being formed with a longitudinally extending peripheral seat, and the cover being formed with a radially extending opening communicating with the seat and With the periphery of the cover; of a card gripping finger mounted in the opening for radial movements relative to the platen and provided with rack teeth along one edge; means for moving the finger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth; and a spring for yieldably retaining the finger against outward radial movement.

13. In a typewriting machine, the combination with a cylindrical platen comprising a Wooden core and a rubber cover therefor, the core being formed with a longitudinally extending peripheral seat, and the cover being formed with a radially extending opening communicating with the seat and with the periphery of the cover; of a card gripping finger mounted in the opening for radial movements relative to the platen and provided vvith rack teeth along one edge; means for moving the finger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth; and means for retaining said shaft against longitudinal movement relative to the platen.

14. In a typewriting machine, the combination with a cylindrical platen having a longitudinal seat located intermediate the longitudinal axis and the periphery, and having an opening extending radially between said seat and said periphery; of a card gripping finger mounted in the opening for radial movements relative to the platen and provided with rack teeth along one edge; a guide frame mounted in said seat and provided with a guide opening for the finger; and means for moving the finger including a pinion shaft journaled in the frame and having direct engagement With said rack teeth.

15. In a typevvriting machine, the combination with a cylindrical platen, of a plurality of spaced card gripping fingers mounted in the platen for radial movements relative thereto and each provided with rack teeth along one edge; and means for moving the fingers simultaneously including a single pinion shaft disposed Within the cylinder and having direct engagement with the rack teeth of said ngers.

16. In a typewriting machine, the combination with a cylindrical platen; of a card gripping fmger mounted in the platen for radial movements relative thereto and provided with rack teeth along one edge, said finger being provided at its outer end with oppositely projecting card-engaging means; and means for moving the finger including a pinion shaft disposed Within the cylinder and having direct engagement with said rack teeth.

17. In a typewriting machine, the combination With a cylindrical platen, said platen having an axial bore, a longitudinal seat located intermediate the longitudinal bore and the periphery, a radially extending guide opening communicating with the seat and with the periphery and a radially extending clearance opening communicating with the bore and with the seat and disposed in radial alineznent With the guide opening; of a card gripping nger mounted in said opening for radial movements relative to the platen and extending across said seat, said finger being capable of being wholly retracted Within the platen and provided with rack teeth located in register with said seat; means for moving the finger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth and an operating ringer lever fixed to the projecting end of vthe shaft, a stub axle fixed to the adjacent end of the platen, and a stop xed to the finger lever and normally engaging the stub axle to limit the inward movement of the nger.

18. In a typewriting machine, the combination with a cylindrical platen, said platen having an axial bore, a longitudinal seat located intermediate the longitudinal bore and the periphery, a radially extending guide opening communicating with the seat and with the periphery and a radially extending clearance opening communicating with the bore and with the seat and disposed in radial alinement with the guide opening; of a card gripping finger mounted in said opening for radial movements relative to the platen and extending across said seat, said finger being capable of being Wholly retracted within the platen and provided with rack teeth located in register with said seat; means for moving the iinger including a pinion shaft journaled in the seat and having direct engagement with said rack teeth and an operating finger lever fixed to the projecting lend of the shaft, a stub axle xed to the adjacent end of the platen; a stop xed to the finger lever and normally engaging the stub axle to limit the inward movementl of the linger; and a coil spring disposed around said `projecting end of the shaft and having its ends respectively connected to the platen and to the shaft for yieldably retaining said stop against the stub axle.

LEWIS C. MYERS. 

